Uniswap on L2s: what changes for you

L2s can reduce gas, but you must track networks and bridges.

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Common mistakes

• Sending assets to the wrong network.
• Confusing wrapped vs native tokens.
• Ignoring bridge fees and timing.

Bridging basics

Bridging moves assets to another network. Always confirm the destination network inside your wallet and be cautious with unofficial bridges.

Good habits on L2

• Keep a small gas balance on the L2 you use.
• Label networks in your wallet to avoid confusion.
• Use the same caution with token addresses as on mainnet.

Common bridging mistakes (and how to avoid them)

• Wrong destination: confirm the target network in your wallet before sending.
• Assuming “same address” means “same chain”: addresses can exist on many chains.
• Using random bridges: stick to widely known, reputable bridges and verify the domain carefully.

Operational tips

Keep a small buffer of the L2 gas token so you’re not stuck unable to move assets. Label tokens and networks in your wallet to reduce confusion when switching frequently.

Choosing the right network

If you mostly do small trades, lower fees on L2 can matter more than anything else. If you move large amounts infrequently, the convenience of mainnet liquidity might still be appealing. The right choice depends on trade frequency, size, and your comfort with bridging.

Bridge costs and timing

Bridges can charge fees and may have delays depending on the path and network. Always verify the asset you receive on the destination chain (sometimes it’s a canonical token, sometimes a bridged representation). Keep screenshots of the bridge transaction IDs for troubleshooting.